Tube-forming machine.



J. VV. PACKER.

TUBE FORMING MACHINE.

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J. W. PACKER. TUBEFORMING MACHINE.

APPLICAHON FILED AuG.9. 191e.

l Ql Patented Mar. 5, 1918.

5 SHEETS-SHEET 3.

55u HozuciJS J. W. PACKER.

TUBE FORWHNG MACHINE.

APPLlcAnoN man Aus.9.191s.

Patented Mar. 5, 1918.

5 SHEETS-SHEET 4 p, @w ...JM

J. VV. PCKEH.

TUBE FORMING MACHINE.

APPLICATION FILED Aus.9. 1916.

Patented Mar. 5, 19M

5 SHEETS-SHEET 5.

l l U I l" $5.51) "s @Hozucqs pawn; l

\ srATEs PATENT oEEIoE.

JAMES WllLLIAM PACKER, OF GLENS FALLS, NEW YORK, SSIGNOR TO THE SANDY HILL IRON & BRASS WORKS, A CORPORATION OF NEW YORK.

TUBE-FORMING MACHNE.

Application filed August 9, 1916.

To all 'wlw/lt t may concern.'

Be it known that l, JAMES WILLIAM Paolina, a citizen of the United States, residing in Glens Falls, county of lWarren, State of New York, have invented certain new and useful Improvements in Tube- Forming Machines; and l do hereby declare the following to be a full, clear7 and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to the art of making tubes by winding a sheet of paper on a mandrel simultaneously with the appli cation of adhesive to one side of the paper, thereby building up a shell which subse quently can be stripped from the mandrel and will be strong and rigid because of the number of layers, and the binding and stiffening action of the adhesive which holds those layers together. Such shells or tubes can then be cut to the proper length and notched at their ends, and can be used as cores for rolls of paper to be used in printing presses of the continuous type, such as are now commonly employed in the production of newspapers.

llt is an object of the present invention to provide a machine which is rugged in construction and which is compact in design, this machine having means properly regulated for winding a paper sheet on a mandrel and for stripping the shell thus formed from the mandrel.

The mandrel of that embodiment of my invention which is illustrated in the accompanying drawings, is formed in two parts detachably secured together, between which parts the forward edge of the sheet of paper may be clamped and held preparatory to the winding operation, one of these parts being tapered or wedgeshaped for removal from the other when the shell is to be stripped from the mandrel. Means is provided for stripping the shell from the mandrel with power, use being made of a worm, operated through frictional driving means from the main power shaft of the machine. rllhe strippingl means operatively engages the small end of the wedge-shaped part of the mandrel and pushes that off with the paper shell, and the entire operation of removing the shell from the mandrel is under easy control and offers no element of danger either to the operator or to the machine.

Specification of Letters Patent.

Patented Mar. 5, 1918.

serial No. 113,844.

To make possible the removal of the shell from that portion of the mandrel which remains in the machine, one of the mandrel bearings is of special design to open up and drop away, so that it offers no obstruction in the path of the shell being stripped olf.

The other bearing of the mandrel remains undisturbed and may be of rigid and permanent character, holding the main part of the mandrel against swinging with respect to the machine frame.

The friction drive employed throughout the machine makes possible a wide range in the operating conditions and in the speed at which any step of the complete process is performed.

In the accompanying drawings, illustrating an embodiment of the invention, and in which the same reference numerals refer to similar parts in the several figures,

Figure l is a view of the machine in side elevation;

Fig. 2 is an elevational view from the other side of the machine;

Fig. 3 is a front elevational view, parts being broken away;

Fig. 4 is a sectional View taken on the line 4-4 of Fig. 3;

Fig. 5 is a detail view, in elevation, showing the mandrelV bearing box in its disengaged position;

Fig. 6 is a detail sectional viewtaken along the line 6*-6 of Fig. 3;

Fig. 7 is a detail sectional view of the split nut of the traveler;

Fig. 8 is a plan view of the body portion of the mandrel;

Fig. 9 is a plan view of the under side of the removable portion of the mandrel;

Fig. 10 is a side elevational View of the body portion of the mandrel, with a portion thereof indicated in cross section;

.Fig 11 is a sectional view of the entire mandrel taken on the line ll--ll of Fig. 10;

Fig. 12 is a sectional view of the entire mandrel taken on the line 12-12 of Fig. 10;

Fig. 13 is a view showing the manner of attaching the paper t0 the mandrel; and

Fig. 14 is an elevation of one end of the trough that holds the adhesive.

Referring to the drawings, l indicates a frame upon which a shaft 2 is rotatably supported and which carries a roll of paper 3 of which th'e tubes are to be formed. In order to control the speed of rotation of the frame in any suitable manner, as by being A vconnected to the pivot-shaft 5. lr weight 8 is adjustably mounted on the free end of the arm 4land by varying its position the edect of the band upon the brake-wheel may dll vbe varied. l pin 9 projects from the arm l at any convenient point and enters a slot in a link l0 connected to an arm ll which may be adjustably clamped on` a shaft l2 mdunted in brackets extendingrearwardly from the upper portions of the framed. l/lhen the shaft is rocked in afdirection to raise the arm il theV link l0 will ultimately engage thb` pin 9 to lift arm l and render the brake-band inoperative thereby permitting free-rotation of the shaft 2.

lll`he paper in the course of its'travel .through the machine passes over a guide roller i3 which may be adjusted by means ,under the control of a hand-wheel ll at the front of the machine. lfrom the roller i3 the paper passes over a roller l5 which. is mounted upon a shaft le supported in depending brackets f7 from'the under sides of a pair of arms i8 clamped upon the shaft l2 in any convenient manner toswing therewith. .Zlittached to the same shaft, but eirtending in the opposite directionv isza sec ond pair of arms i9 upon which weights 20 may be adjustably attached tocounter-bal ance the arms l8 and the trough for holding paste or other adhesive attached thereto.

. rlhe paste trough ofv the apparatus comprises a base 2l having supporting braclrets 22 attached thereto; the braclrets being provided with slots 23 through which bolts 2l attached to the forward ends of the arms i8 pass.V Nuts on the ends of the bolts permit thesupporting brachets .to -be clamped in any desired position of adjustment. ds' apears most clearly in lFig. 3, the arms i8 and the braclrets 22 are preferably made of lshaped cross-section and bolts 25 threaded into the horizontal portions of the braclrets bear upon the u per surfaces of the horizontal portions of the arms and are serviceable as jaclrs when adjustments .of the trough on the arms are to be made.

'lhe remaining parts of the paste trough comprise a front wall 26 provided with adrain aperture closed by a plug 2l, a. rear wall 28 and end walls 29. "lhe bottom and front walls are preferably of wood. "lhe endwalls are formed with bosses 30 which serve as bearings for a shaft 39 upon which 29 are cut away as shown most clearly in lfig. ill. 'fl shaft 36 is mounted in braclrets 37 which are adjustably mounted upon the end walls 29by means of bolts 38 and 39. Bolts 38 pass throughvertical slots in the braclrets 37 thereby permitting a vertical adjustment of the shaft 36, when bolts 39 are turned. 'lhe brackets are then clamped in their adjusted, position by the bolts 38. lUpon the shaft 36 is mounted a roller l0 for the purpose of transferring the paste from the roller 3l to the surface of the paper which in the course of its travel through the machine passes from roller l5 upward along the rear surface of rear wall 28. Roller l0 is adjusted so that it engages roller 3l and at the same time engages the paper as the latter passes from lthe rear surface ofthe rear wall. .di cross-bar dl entends between the end walls to which it is attached by means of screws l2. 'lFhis bar is in front of roller 40 and serves 'as a guard.

.as appears most clearly in Fig. 2l' the front face of the roller l5 is slightly to the rear of the plane of the rear wall 28. lin order therefore to retain the paper against this wall as it passes upwardly from the roller l5 a guide 4&5 is provided. This guide is pivoted to supporting brackets 4-5 so that it may be swung toward or from the rear wall 28 by means of a handle 4:6. rlhe purpose of the above construction is to permit the guide to be ised as a clamp for holding the free end of 'the paper after a tube hasV been formed and ysevered therefrom. and while the tube is being removed from the machine preparatory to again attaching the end of the paper strip. to the mandrel upon which the tubes are formed. llf desired the guide d5 may be swung back out of the way to permit the paper to be carried 'through the machine when a new roll is added thereto.

Since the paste trough and its associated apparatus are all mounted upon the ends of the arms i8 they may be moved away from the mandrel and lowered into the position indicated in dotted lines in llig., fl by depress'- ing the forward ends of these arms. ln order., however, to limit the downward motion ofthe arms a pair of linlrs is provided. @ne of these linlrs is attached to each of the arms f8 and each linlr is formed witha slot, within which entends a shaft 5l mounted in bearings uponlthe top of the framework l. This construction limits the possible downward movement of the arms i8. lldleansis also provided for limiting the upward. movelll@ lllti llll llb

lltlll ment of these arms comprising a pair of cams 52 mounted upon the shaft 51 immediately above the arms 1S. The upper surfaces of these arms engage the cams to limit the possible upward movement of the a-rms. By rocking the shaft 51 to which the cams 52 are attached the position of the latter and consequently the limit of upward movement of the arms 18 may be adjusted. The shaft 51`may be retained in any desired position of adjustment by suitable clamping means.

When the paste trough is in the dotted line position indicated in F ig. l the machine is inoperative for forming the paper tubes but at such times it may be desirable to provide means for rotating the paste rollers either for cleaning them or for preventing the paste from adhering to the surface of the rollers if they are not in motion. rllo provide auxiliary driving means for this contingency a sprocket-wheel is attached to the end of shaft 10 and when the paste 'trough is in its lower position the teeth of the sprocket-wheel engage a sprocket-chain 56 which passes over a wheel 57 mounted in brackets 58 at the bottom forward end of the framework 1. Toward the rear of the machine the sprocket-chain 5G passes over a second wheel 50 upon a shaft 60 mounted in brackets 61 attached to the framework 1. lUpon the same shaft is a pulley 62 which is connected by means of a belt G3 to a shaft 64 driven by a pulley 05 belted to the mechanism for driving the machine.

From the pasting roller the paper passes to the tube forming mandrel, which comprises a body portion 70, rotatably supported on the frame, and a removable wedge.- shaped portion 71, between which portions the end ofthe paper is gripped, as shown in Fig. 13, the section 71 being held in posit-ion by means of a removable ring 72 placed around the end of the mandrel, as shown in lFig. 10. The body portion is provided with a longitudinally extending groove 73 adapted to be engaged by a lug 74 projecting from the under surface of the removable portion 71 by means of which the inner end of the portion 71 is centered and held against lateral movement relatively to the body portion, and in which groove the lug travels to act as a guide during the removal of the portion 71, as hereinafter described. rlhe lug 7-1 is so positioned upon the portion 71 that, when it engages the inner end of the groove 73 the inner end of the portion 71 will be spaced from the shoulder 75 on the body portion a distance sutlicient to enable a key, hereinafter described, to be inserted therein,

whereby the key will engage the end of the removable portion. rlhe inner surface of the removable portion is also provided with a recess 76, the outer end of which engages a projection 77 on the body portion, whereby to center the outer end of the removable portion with respect to the body portion and prevent lateral movement thereof.

T he axle of the mandrel at the end thereof toward which the wedge portion 71 travels during its removal from the body portion is journaled in a two-part bearing box, the construction of which appears most clearly in Fig. This box comprises a lower part 80 carried by and preferably integral with a lever 81 pivoted to the frame and an upper part S2 pivoted to the lever 81 whereby such part may be thrown into or out of operative relation to the lower part. Under normal or operating conditions the parts of the box are closed to receive the axle of the mandrel, the upper part being locked in position by a latch 83 and the box being held in elcvated position by a rotatable support S4 which engages the lever 81 and which is provided with a shoulder 85 to engage the frame to hold it in operative position. In order to disengage the box from the axle the latch S3 is moved out of engagement with the upper part 82 which is then rotated upon its pivot. after which the support 84 is removed out of engagement with the lever 8] allowing the latter to drop and carry the lower part 8O of the box away from the axle as shown in Eig. 5, the mandrel retaining its horizontal position because the shaft thereof passes through bearings 86 and 87 at the top of the machine.

On the shaft of the mandrel between bearings 86 and 87 is secured a pulley 8S and a hand-wheel 89, the latter being for convenience in manual manipulation of the mandrel when attaching a new sheet of paper thereto. Pulley 88 is connected by a belt 90 to a pulley 01 secured to the main shaft 641.

"lhe belt 00 is normally slack and this slack is taken up in order to render the belt operative when it is desired to rotate the mandrel by means of a tension roller 93 operatively connected to a lever 94, by which the roller may be moved into or out of engagement with the belt.

The means for removing the wedge portion 71 of the mandrel after the tube has been formed comprises a traveler 100 supported upon a guiding rod 101 attached to the framework 1. The upper end of the traveler 100 surrounds the mandrel and is provided with a slot 102 to receive a key 103 (Fig. 3), which is preferably attached to the traveler by a chain 104 and which, when positioned in the slot, will engage the inner end of the wedge portion 71. The traveler 100 is also provided with a split nut consisting of a fixed upper section 105 having a smooth inner surface and a movable section 106 which is secured to a lever 107 pivoted to the traveler 100. The movable section is threaded as shown in Fig. 7 and by means of the lever 107 it may be moved into or out of engagement with the rotatable worm 108 which extends through the split nut. A latch 109 is provided to hold the lever in its raised position in which the thread on the movable section of the nut will engage the vvorm, thus causing the travl eler to move from the right to the left, as seenin Fig. 3, when the vvorm rotates.A As the key 103 when inserted in the slot 102 engages the inner end of the wedge portion 7.1 of the mandrel such portion will be forced to move to the left carrying the paper tube therewith, it being of course understood i that the bearing bol; 80, 82 Will be first disengaged from the mandrel axle as above described, and that the ring 72 Will be rey Vmoved.v lhe right-hand end of the Worm ley 117 upon the main shaft till, the belt being rendered operative by'means of a tellsioning roller 118 mounted betvveen the ends of a` double arm bracket 119 Which is pivoted at 120 to a xed bracket 121 attached to the framework of the machine. Also attached to the shaft 120 is a lever 122 havrear end. At its other end the lever is turned upwardly and then forwardly forming a handle 124C in a position convenient to the operator of the machine. The counterweight 123 should be of such magnitude and so spaced from the shaft 120 that it normally retainsroller V118 out of contact With the belt 116. When it is desired to rotate the Worm 108 to remove a hnished tube from the mandrel, depression of the lever handle 124 causes roller 118 to engage the belt 118 and the latterthen becomes operative to drive the vvorm.

The operation of the parts described above is briefly as follovvs:

The paper is threaded through the machine over roller 13, under roller 15, betvveen guide A5 and rear plate 28, and the end thereof is then laid uponV the body portion of the mandrel, the Wedge portion 71' at this time being detached from the remainder of the mandrel. While the paper is held in place upon the body portion of the mandrel the Wedge portion 71 thereof is replaced in position. The end of the paper is then gripped between these tvvo portions of the mandrel as shovvn in hig. 13. "lhereafter the ring 72 is placed upon the end of the mandrel and the bearing bon 82 is returned to its normal position in engagement vvith the mandrel axle, it being of course neeessary that'this bearing bon be out of place in ortler to permit the replacement of the section of the mandrel. lhe paper being in ing a counterbalancing Weight 123 on its' ralenti place, the lever 911- is moved to cause `the tension of the roller 03 to take up the slack belt 90 whereupon the mandrel vvill be rotated to dravv the paper through the machine and cause it to vvind upon the mandrel to form a tube; the convolutions of which will be rmly secured to one another by the paste Which is applied to the paper as it passes over the pasting roller 10, the latter being supplied with paste by the roller 31 which in turn is driven through the belt 33 from the guide roller 15 by the motion of the paper over the latter. When the tube is of the desired thickness the lever 9d is moved to its inoperative position and the paper is severed from the formed tube in any suitable manner. 'l`he bearing bor 80, 82 is then disengaged from the mandrel arde as above described and the ring 7 2 removed. rllhe lever 107 is then raised and latched by 100 to hold the movable threaded section 106 of the split nut in engagement With the vvorm 108. 'lhe key 103 is placed Within the slot 102 of sleeve 100 in position to engage the inner end of the removable portion 71 of the mandrel. The lever 122 is then moved to cause the tension roller 118 to take up the slack of the belt 116 vvhereupon the vvorm 108 will be rotated to move the traveler 100 from right to left as vievved in lFig. 3.

During the movement of the traveler the ivedge portion 71 will be forced off of the body portion 70 carrying With it the paper tube which will be retained in position thereon by frictional engagement yvvhereby the traveler Will not come into contact with the tube. When the traveler reaches the end of its path the roller 118 is moved into its in- Vnecessary to cut the same to the desired length and to form notches in the ends thereof, these notches being adapted to engage lugs on the vpoint of the machine in connection vvith which the paper carried upon the tube is to be used. For the purpose of performing these tvvo operations any desired mechanism ma be used. A

Various mo ihcations or changes in the details of construction of my invention may be made vvithout departing from the principle thereof.

1. ln a machine for making paper tubes having a frame and a rotatable mandrel7 a removable two-part bearing to support one iio Ill

maaier end ot said mandrel, a levei pivotally mounted upon the trame and carrying one of said parts, the other ol'l said parts being pivotally secured to said lever and releasable means to hold said bearing in its mandrel-supporting position.

2. In a machine for making paper tubes, in combination, a frame, a two-part mandrel rotatably supported thereon and held against movement perpendicular to its axis, one of the parts of said mandrel being removable, a worm parallel to said mandi'el, means to rotate said worm, and means actuated by said ivorm to remove one of the parts ot said mandrel together with the termedl tube, said means Comprising a threaded member movable into and out of engagement with said worm and means to lock said member in its worm-engagingposition.

3. In a machine'for making paper tubes, in combination, a frame, a tivo-part mandrel rotatably supported thereon and held against movement perpendicular to its axis, one of the parts of said mandrel being removable, a worm parallel to said mandrel, means to rotate said worm, and means actuated by said worm to remove one oi the parts of said mandrel together with the formed tube, said means comprising a split nut surrounding said worm and having a threaded section movable into and out of engagement therewith.

4t. In a machine for making paper tubes, in combination, a frame, a mandrel rotatably supported thereby and comprising a body portion anda removable portion, a worm parallel to said mandrel, means to rotate said worm, and means actuated by said worm and engaging said removable portion to move the same relatively to said body portion.

5. In a machine for making paper tubes, in Combination, a traine, a mandrel rotatably supported thereby and comprising a body portion and a removable portion a worm parallel to said mandrel, means to rotate said worm, a sleeve surrounding said mandrel and carrying a member engaging said removable portion, and a threaded member operatively connected to said sleeve and adapted to be mved into and out of engagement with said worm.

6. In a machine for making paper tubes, a mandrel comprising a permanently supported body portion and a removable portion, said portions having co-acting paper gripping surfaces, and detachable means to hold said removable portion in position upon said body portion.

7. In a machine for making paper tubes, a mandrel comprising a permanently supported body portion and a removable portion, said portions having co-acti'ng paper gripping surfaces, one of said portions being provided with a recess and the other of said portions being provided with means engaging said recess to prevent lateral movement oi' said removable portion.

8. In a machine for making paper tubes,

ra mandrel comprising a permanently supto rotate said mandrel from said main shaft,

a pasting roller beneath the mandrel adapted to be engaged by the paper before it is wound upon the mandrel whereby a coating of paste is applied to the paper, a mounting tor said roller permitting the roller to be rocked upon said frame toward or away i'rom the inandred, and means associated with said roller mounting for guiding the paper over the roller.

10. In a machine for making paper tubes, in combination, a trame, a receptacle for holding adhesive pivotally mounted on said frame, a roller associated with said receptacle, a rotatable mandrel, means movable with said receptacle for guiding the paper over said roller, and means to rotate said mandrel to draw the paper over said guiding means and said roller and wind it upon the mandrel to form a tube.

ll. In a machine for making paper tubes, in combination, av frame, means rotatably' supported thereon to hold a roll of paper, a rotatable mandrel upon which paper is wound to form a tube, means to rotate said mandrel, arms pivotally mounted on said frame, a paste trough supported upon said arms beneath the mandrel whereby it may be raised toward or lowered away from said mandrel, a pasting roller associated with said paste trough, and means mounted on said arms for guiding the paper over said paste roller.

l2. Ina machine for making paper tubes, in combination, a frame, means rotatably supported thereon to hold a. roll of paper, a rotatable mandrel upon which paper is wound to form a tube, means to rotate said mandrel, arms pivotally mounted on said frame, a paste trough supported on said arms whereby it may be moved to or from said mandrel, a pasting roller associated with said paste trough, means to counterbalance the arms and associated parts, and a. guiding and clamping device mounted on the arms and through which the paper passes before passing over the pasting roller.

13v In a machine for making paper tubes,

in combination, a lrame, ashalt rotatably supported thereon to hold a roll ol paper, a mandrel rotatably supported on the lrame, arms pivotally mounted on ,saidi lrame, a paste trough mounted on said arms whereby it may be moved to or lroin said mandrel, a guiding roller lor the paper' mounted on said arms, a paste-leeding roller mounted in said trough, means lor driving said leeding roller from said guiding roller, a second roller adapted to be supplied with paste by said paste-feeding roller andto apply paste to the paper, means to guide the paper over said second roller, and means to rotate said mandrel to wind paper thereon and to draw the paper' over said guiding roller and to rotate thesame.

la. ln a machine lor making tubes, in

combination, a lrarne, means associated therewith to hold a roll ol paper, a mandrel upon which the paper is wound .to lorm a tube, a main driving shalt, means tol drive said mandrel lrm said shalt, a paste roller, means actuated by the travel ol the paper lor driving said roller, and means whereby said roller may be driven lrom said shalt when paper is notbeing wound upon said mandrel.

l5. ln a machine lor making paper tubes, in combination, a lrame, a shalt rotatably supported thereon to hold a roll ol paper, tensioning means lor controlling the rotation ol said shalt, a second shalt mounted upon said lrame, arms mounted upon said second shalt, a pasting roller 'supported upon said arms and a connection between said second shalt and said tensioning means whereby the latter is released when the said arms are depressed to carry the paste roller into inoperative position.

lb. ln a` machine lor making paper tubes, Y

y in combination, a lrame, a mandrel rotatably supported on the lrame, a main driving naait.

supported on said frame, a main driving shalt, means to drive said mandrel lrorn said t5 shalt, a paste trough, a pasting roller mounted in said trough, means lor rotating said pasting roller, means actuated by travel ol the paper as it is wound upon said mandrel lordriving said rotating means, auxiliary means actuated lrom said main shalt lor driving said rotating means inde`I pendently ol the travel ol paper, and a mov; able support lor said paste trough and pasting roller whereby said rotating means may sa be brought into position to, be drivenvby said auxiliary means.

i8. ln a machine lor making paper tubes, in combination, a lrarne, a mandrel rotatably mounted on said lrame, a maindriving shalt, means to drive said mandrel lrom said shalt, a pasting trough, a pasting roller mounted in said trough, a belt lor driving said pasting roller, a roller actuated by the travel ol paper as it is Wound upon said mandrel 'lor driving said belt, a sprocket chain driven lrom said main shalt, a sprocket wheel associated with said driving roller, a movable support lorv said trough and pasting roller adapted to permit said sprocket wheel .to be brought into engage- Till 'ment with said sprocket chain whereby said 'a belt and pasting roller may be driven independently ol the travel 0l paper. ln testimony whereol l aihx my signature. .S5

llll/lEbl Wllhlillihll PACKER.

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